Failure Analysis of Slurry Pump Impeller in Chehe Dressing Plant
Chemical composition and metallographic organization were analyzed for the failure characteristics and main reasons of the imported slurry pump impeller used by Chehe Dressing Plant China Tin Group. A series of larger long strip form carbides found on the metallographic organization, which improving cut apart trend on matrix seriously, was the main reason of the impeller failure. Proper amount of vanadium, titanium and rare earth complex modifier can refine carbides and improve their morphology. The best mortar proportion was identified in the laboratory analysis conditions through the wear experiments.
Y. Y. Zhong et al., "Failure Analysis of Slurry Pump Impeller in Chehe Dressing Plant", Advanced Materials Research, Vol. 510, pp. 390-394, 2012